3 UK is the first operator to integrate Facebook into the handset/device, with a “Facebook button” that will take users directly to the site. It will be part of an “ultimate handset”, which will be launched for Christmas, reports MarketingWeek. This is the first such operator to do that, and in keeping with Facebook’s huge popularity within UK…from 3’s perspective, it is amping up its focus on mobile internet, which will be supported by a series of ad campaigns.